Device and method for testing strength of excavator bucket teeth

Abstract

The invention relates to the technical field of bucket tooth testing, and discloses an excavator bucket tooth strength testing device and method.The excavator bucket tooth strength testing device comprises an operation platform, a pushing air cylinder used for pushing a bucket tooth body to move is installed on the operation platform, the bucket tooth body is installed at the movable end of the pushing air cylinder through a bolt, and a detection platform is installed on the operation platform; in the moving process of the bucket tooth body, the bucket tooth body makes contact with the detection platform, an extrusion ring is arranged on the outer side of the bucket tooth body and is in clearance fit with the bucket tooth body, and an extrusion block used for applying force to the bucket tooth body is installed in the extrusion ring. Therefore, the state that the side part of the bucket tooth body is smashed by rolling stones in the excavation process is simulated, and the anti-pressure capability and the structural stability of the bucket tooth body in the state are detected. Various conditions, including the hardness of the bottom side and the extrusion impact on the side part, encountered by the bucket tooth body in actual work are simulated, and the performance of the bucket tooth body under different working conditions can be further detected.

Description

Technical Field

[0001] The invention relates to the technical field of bucket tooth testing, and in particular to a testing device and a testing method for the strength of an excavator bucket tooth. Background Art

[0002] The excavator bucket teeth are an important part of the bucket, responsible for digging soil, rocks and other materials from the ground. Bucket teeth are usually made of high-strength alloy steel to ensure that they have excellent wear resistance and impact resistance. Different types of bucket teeth (such as straight teeth, curved teeth, and knife-shaped teeth) are suitable for different working environments and can meet various excavation needs. Straight teeth are suitable for ordinary soil, curved teeth are suitable for hard rocks, and knife-shaped teeth are suitable for harder materials.

[0003] Bucket teeth are usually installed with bolts to facilitate replacement and maintenance. As the use time increases, the bucket teeth will gradually wear, affecting the excavation efficiency and equipment safety, so they need to be regularly inspected and replaced according to the wear. The selection of appropriate bucket teeth requires consideration of the nature of the excavated material and the working environment to ensure the performance and life of the bucket teeth. Regular cleaning of dirt and debris on the bucket and bucket teeth is also an important part of maintenance.

[0004] At present, the scope of bucket tooth testing is usually to test the hardness of the front end of the bucket tooth. There are few simulations of different situations encountered by the bucket tooth during excavation, such as the possibility of stones falling and hitting the bucket tooth body 180. Therefore, the existing testing is not comprehensive enough; therefore, it does not meet the existing needs. In this regard, we propose a testing device and method for the strength of excavator bucket teeth. Summary of the invention

[0005] The present invention provides a testing device and a testing method for the strength of an excavator bucket tooth, which has the beneficial effect of simulating the detection of a bucket tooth body in different states during the excavation process, and solves the problem that the scope of bucket tooth detection mentioned in the above background technology is usually the hardness detection of the front end of the bucket tooth, and there are few simulations of different situations encountered by the bucket tooth during the excavation process, such as the possibility of stones falling and hitting the bucket tooth body 180, so the existing detection is not comprehensive enough.

[0006] The present invention provides the following technical solutions: a testing device and a testing method for the strength of an excavator bucket tooth, comprising an operating platform, a pushing cylinder for pushing a bucket tooth body to move is installed on the operating platform, the bucket tooth body is installed on the movable end of the pushing cylinder by bolts, a detection platform is installed on the operating platform, and during the movement of the bucket tooth body, the bucket tooth body contacts the detection platform, an extrusion ring is arranged on the outside of the bucket tooth body, the extrusion ring is clearance-matched with the bucket tooth body, and an extrusion block for applying force to the bucket tooth body is installed inside the extrusion ring.

[0007] As an optional solution of the testing device and method for the strength of excavator bucket teeth described in the present invention, a connecting block is installed at the end of the movable end of the pushing cylinder, a supporting column is symmetrically installed between the extrusion ring and the connecting block, and a first circular plate and a second circular plate are rotatably installed inside the extrusion ring.

[0008] As an optional solution of the testing device and testing method for the strength of an excavator bucket tooth described in the present invention, a support platform is installed inside the extrusion ring, the first circular plate is installed adjacent to one side of the support platform, the second circular plate is installed adjacent to the other side of the support platform, a sliding rod is slidably installed inside the support platform, and the extrusion block is installed on the bottom side of the sliding rod.

[0009] As an optional scheme for the testing device and testing method for the strength of an excavator bucket tooth described in the present invention, wherein: a plurality of inclined grooves are opened on the surface of the first circular plate, a sliding column is installed on the side of the sliding rod, and the sliding column is slidably matched with the inclined groove, a first protrusion is installed on the side of the first circular plate, and a second protrusion is installed on the side of the second circular plate, and support seats are installed on the surfaces of the first protrusion and the second protrusion respectively, a rotating screw is installed between the two support seats, a rotating motor is installed on the end of the rotating screw, a connecting plate is installed on the side of the extrusion ring, and the rotating motor is installed on the end of the connecting plate.

[0010] As an optional solution of the testing device and method for the strength of excavator bucket teeth described in the present invention, the surface of the rotating screw is provided with a first thread segment and a second thread segment, the threads of the first thread segment and the second thread segment are opposite, and the first thread segment and the second thread segment are respectively matched with the threads of the two support seats.

[0011] As an optional solution of the testing device and testing method for the strength of excavator bucket teeth described in the present invention, wherein: a plurality of first detection blocks are integrally installed on the side of the extrusion block, the first detection blocks are linearly installed on the side of the extrusion block, a movable groove is opened on the side of the extrusion block, a second detection block is movably installed inside the movable groove, and a pushing spring is installed between the second detection block and the movable groove, sliding grooves are symmetrically opened on both sides of the movable groove, sliding blocks are symmetrically installed on the side of the second detection block, and the sliding blocks are slidably matched with the sliding grooves.

[0012] As an optional solution of the testing device and method for the strength of excavator bucket teeth described in the present invention, wherein: semicircular blocks are installed at the ends of the two groups of sliding rods, and the first rotating block and the second rotating block are symmetrically installed on the surface of the semicircular block.

[0013] As an optional solution of the testing device and testing method for the strength of an excavator bucket tooth described in the present invention, the first rotating block and the second rotating block are rotatably installed on the surface of the semicircular block, and the first rotating block surface is rotatably installed with a first interference block and a second interference block, and the first rotating block and the second rotating block have the same specifications.

[0014] As an optional solution of the testing device and method for the strength of an excavator bucket tooth described in the present invention, a pointed block and a rectangular block are installed on the surface of the detection platform, and the diameter of the rectangular block is larger than that of the pointed block.

[0015] This solution also proposes a method for testing the strength of an excavator bucket tooth, which includes the following steps:

[0016] S1. The tooth body is mounted on the bottom side of the active end of the push cylinder by bolts;

[0017] S2. During the operation of the pushing cylinder, the bucket tooth body is driven to descend and to collide with the pointed block and the rectangular block. During the descent of the bucket tooth body, the downward pressure is continuously increased, so that the pointed block and the rectangular block collide with the bottom side of the bucket tooth body with different force areas;

[0018] S3. The friction of the bucket tooth body is simulated by different force-bearing surfaces, and the bucket tooth body encounters damage caused by stones of different sizes during the excavation process.

[0019] The present invention has the following beneficial effects:

[0020] 1. The testing device and method for the strength of the bucket tooth of the excavator drive the contact between the bucket tooth body and the detection platform by pushing the cylinder to simulate the state of the bucket tooth body in excavating underground stones, so that the hardness of the bottom side of the bucket tooth body can be detected to evaluate its durability in actual excavation operations; not only that, by using the cooperation of the rotating screw during the operation of the rotating motor, the second circular plate and the first circular plate rotate oppositely inside the extrusion ring, and in the process of rotation, the cooperation of the inclined groove, the sliding rod and the support platform is used to make the sliding rod drive the extrusion block to continuously squeeze in and out with the side of the bucket tooth body, thereby simulating the state of the bucket tooth body being hit on the side by the rolling stones during the excavation process, and detecting the compressive resistance and structural stability of the bucket tooth body in this state; so that the various situations encountered by the bucket tooth body in actual work are simulated, including the hardness of the bottom side and the extrusion impact on the side, which further helps to detect the performance of the bucket tooth body under different working conditions.

[0021] 2. The testing device and method for the strength of the bucket teeth of the excavator use the cooperation of the first detection block and the second detection block to simulate the impact of stones of different hardness on the bucket tooth body. The first detection block is integrally installed on the side of the extrusion block. Therefore, in the process of impacting the bucket tooth body, the first detection block is relatively more stable and can directly transmit the force of the extrusion block to the side of the bucket tooth body. In addition, by setting the first detection block to teeth with different diameters, the force-bearing area of ​​the impact on the bucket tooth body is different, so that the damage to the bucket tooth body is also different, and the impact of stones of different sizes on the bucket tooth body is further simulated;

[0022] Through the cooperation of the movable groove, the pushing spring and the second detection block, in the process of resisting the bucket tooth body, the second detection block uses the thrust of the pushing spring to strengthen the extrusion of the bucket tooth body. When the bucket tooth body is not deformed, the second detection block returns to the inside of the movable groove and is flush with the end of the first detection block to apply force to the bucket tooth body, thereby simulating the impact of stones of different sizes on the bucket tooth body. When the bucket tooth body is deformed, the second detection block can directly detect the impact of the bucket tooth body, without the need to detect the bucket tooth body through the first detection block, thereby reducing the wear of the first detection block.

[0023] 3. The testing device and method for the strength of the bucket teeth of the excavator, during the operation of the rotating motor, the cooperation of the rotating screw, the second circular plate and the first circular plate is utilized so that during the rotation of the first circular plate, the sliding column of the sliding rod slides from one end of the inclined groove to the other end, and the sliding rod descends from the inside of the support platform at the same time, and the semicircular block at the end is used to squeeze the bucket tooth body during the descent of the sliding rod. During the squeezing of the semicircular block, the first rotating block and the second rotating block rotating on the surface thereof are adaptively resisted to the bucket tooth body. Moreover, the first resisting block and the second resisting block are rotated on the surface of the first rotating block to adaptively resist the tiny inclined surface, so that the semicircular block can fit on the inclined surface of the bucket tooth body, so that uniform pressure is applied to the inclined surface of the bucket tooth body, which helps to simulate the real working environment and evaluate the performance of the bucket teeth at different angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 .

[0025] Figure 2 It is a schematic diagram of the enlarged structure of point A of the present invention.

[0026] Figure 3 The three-dimensional structure of the present invention is shown in FIG. Figure 2 .

[0027] Figure 4 The cross-sectional structure of the present invention is shown in FIG. Figure 1 .

[0028] Figure 5 The cross-sectional structure of the present invention is shown in FIG. Figure 2 .

[0029] Figure 6 The cross-sectional structure of the present invention is shown in FIG. Figure 3 .

[0030] Figure 7 The cross-sectional structure of the present invention is shown in FIG. Figure 4 .

[0031] In the figure: 110, operating platform; 111, pushing cylinder; 112, testing platform; 113, extrusion ring; 114, extrusion block; 120, connecting block; 121, support column; 122, first circular plate; 123, second circular plate; 130, support platform; 131, sliding rod; 132, inclined groove; 133, sliding column; 134, first protrusion; 135, second protrusion; 140, support seat; 141, rotating screw rod; 142, rotating Motor; 143, connecting plate; 144, first thread segment; 145, second thread segment; 150, first detection block; 151, movable groove; 152, second detection block; 153, push spring; 154, slide groove; 155, sliding block; 160, semicircular block; 161, first rotating block; 162, second rotating block; 163, first interference block; 164, second interference block; 170, pointed block; 171, rectangular block; 180, bucket tooth body. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1: This embodiment is intended to promote the solution of the problem that the scope of bucket tooth testing is usually to test the hardness of the front end of the bucket tooth, and rarely simulates the different situations encountered by the bucket tooth during the excavation process, such as the possibility of stones falling and hitting the bucket tooth body. Therefore, the existing testing is not comprehensive enough. Please refer to Figure 1-Figure 7A testing device and method for the strength of an excavator bucket tooth include an operating platform 110, on which is mounted a pushing cylinder 111 for pushing a bucket tooth body 180 to move, the bucket tooth body 180 being mounted on a movable end of the pushing cylinder 111 by bolts, and a detection platform 112 being mounted on the operating platform 110. When the bucket tooth body 180 moves, the bucket tooth body 180 contacts the detection platform 112, an extrusion ring 113 is disposed on the outer side of the bucket tooth body 180, the extrusion ring 113 is clearance-matched with the bucket tooth body 180, and an extrusion block 114 for applying force to the bucket tooth body 180 is installed inside the extrusion ring 113.

[0034] During specific implementation, the bucket tooth body 180 is installed on the bottom side of the pushing cylinder 111. When the pushing cylinder 111 is running, the bucket tooth body 180 is driven to contact the detection platform 112. When the bucket tooth body 180 is continuously descending, the bottom side of the bucket tooth body 180 is in contact with the detection platform 112, so that the bucket tooth body 180 is in a state of simulating excavating underground stones.

[0035] A connecting block 120 is installed at the end of the movable end of the push cylinder 111, a supporting column 121 is symmetrically installed between the extrusion ring 113 and the connecting block 120, and a first circular plate 122 and a second circular plate 123 are rotatably installed inside the extrusion ring 113. A support platform 130 is installed inside the extrusion ring 113, the first circular plate 122 is installed adjacent to one side of the support platform 130, and the second circular plate 123 is installed adjacent to the other side of the support platform 130. A sliding rod 131 is slidably installed inside the support platform 130, and the extrusion block 114 is installed on the bottom side of the sliding rod 131.

[0036] A plurality of inclined grooves 132 are provided on the surface of the first circular plate 122, a sliding column 133 is installed on the side of the sliding rod 131, and the sliding column 133 is slidably matched with the inclined groove 132, a first protrusion 134 is installed on the side of the first circular plate 122, and a second protrusion 135 is installed on the side of the second circular plate 123. Support seats 140 are respectively installed on the surfaces of the first protrusion 134 and the second protrusion 135, and a rotating screw rod 141 is installed between the two support seats 140, and a rotating motor 142 is installed at the end of the rotating screw rod 141. A connecting plate 143 is installed on the side of the extrusion ring 113, and the rotating motor 142 is installed at the end of the connecting plate 143. A first thread segment 144 and a second thread segment 145 are provided on the surface of the rotating screw rod 141, and the first thread segment 144 and the second thread segment 145 have opposite threads, and the first thread segment 144 and the second thread segment 145 are respectively threadedly matched with the two support seats 140.

[0037] During specific implementation, the rotating motor 142 drives the rotating screw 141 to rotate during operation. During the rotation of the rotating screw 141, the first threaded segment 144 and the second threaded segment 145 are respectively threadedly matched with the two support seats 140, so that the second circular plate 123 and the first circular plate 122 rotate oppositely inside the extrusion ring 113. During the rotation of the first circular plate 122, the sliding column 133 of the sliding rod 131 slides from one end of the inclined groove 132 to the other end, and the sliding rod 131 descends from the inside of the support platform 130. During the descent of the sliding rod 131, the extrusion block 114 is driven to squeeze the bucket tooth body 180, so as to simulate the state in which the bucket tooth body 180 is hit by the rolling stone during the excavation process.

[0038] In this embodiment: by pushing the cylinder 111 to drive the bucket tooth body 180 to contact with the detection platform 112, the state of the bucket tooth body 180 in digging underground stones can be simulated, so that the hardness of the bottom side of the bucket tooth body 180 can be detected to evaluate its durability in actual digging operations; in addition, by using the cooperation of the rotating screw 141 during the operation of the rotating motor 142, the second circular plate 123 and the first circular plate 122 rotate in opposite directions inside the extrusion ring 113, and in the process of rotation, the inclined groove 132 and the sliding rod 132 are used to rotate the second circular plate 123 and the first circular plate 122. The cooperation between 131 and the support platform 130 enables the sliding rod 131 to drive the extrusion block 114 to continuously squeeze in and out with the side of the bucket tooth body 180, thereby simulating the state in which the bucket tooth body 180 is hit on the side by rolling stones during the excavation process, and detecting the compressive resistance and structural stability of the bucket tooth body 180 in this state; so as to simulate various situations encountered by the bucket tooth body 180 in actual work, including the hardness of the bottom side and the extrusion impact on the side, and further help to detect the performance of the bucket tooth body 180 under different working conditions.

[0039] Embodiment 2: This embodiment is intended to promote the solution of the problem that the bucket tooth body will face stones of different sizes during the excavation process, so the force bearing area of ​​the bucket tooth body is also different. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1-Figure 7 A first thread segment 144 and a second thread segment 145 are formed on the surface of the rotating screw rod 141 . The threads of the first thread segment 144 and the second thread segment 145 are opposite to each other, and the first thread segment 144 and the second thread segment 145 are threadedly matched with the two support seats 140 respectively.

[0040] A plurality of first detection blocks 150 are integrally installed on the side of the extrusion block 114. The first detection blocks 150 are linearly arranged on the side of the extrusion block 114. A movable groove 151 is provided on the side of the extrusion block 114. A second detection block 152 is movably installed inside the movable groove 151, and a pushing spring 153 is installed between the second detection block 152 and the movable groove 151. Slide grooves 154 are symmetrically provided on both sides of the movable groove 151. Sliding blocks 155 are symmetrically installed on the side of the second detection block 152. The sliding blocks 155 slide in cooperation with the slide grooves 154.

[0041] In a specific implementation, the rotating motor 142 drives the rotating screw 141 to rotate during operation, and at the same time, the first thread segment 144 and the second thread segment 145 are threadedly matched with the two support seats 140, so that the second circular plate 123 and the first circular plate 122 rotate in opposite directions inside the extrusion ring 113, so that the sliding column 133 of the sliding rod 131 slides from one end of the inclined groove 132 to the other end, and at the same time, the sliding rod 131 descends from the inside of the support platform 130. During the descent of the sliding rod 131, the end portion is used, and the first detection block 150 and the second detection block 152 are used to simulate different The impact of a hard stone on the bucket tooth body 180 is integrated with the first detection block 150 on the side of the extrusion block 114. Therefore, in the process of impacting the bucket tooth body 180, the first detection block 150 is relatively more stable and can directly transmit the force of the extrusion block 114 to the side of the bucket tooth body 180. In addition, by setting the first detection block 150 to teeth with different diameters, the force-bearing area of ​​the impact on the bucket tooth body 180 is different, so that the damage to the bucket tooth body 180 is also different, which further simulates the impact of stones of different sizes on the bucket tooth body 180;

[0042] Through the cooperation of the movable groove 151, the pushing spring 153 and the second detection block 152, in the process of resisting the bucket tooth body 180, the second detection block 152 uses the thrust of the pushing spring 153 to strengthen the extrusion of the bucket tooth body 180. When the bucket tooth body 180 is in an undeformed state, the second detection block 152 returns to the inside of the movable groove 151 and is flush with the end of the first detection block 150 to apply force to the bucket tooth body 180, thereby simulating the impact of stones of different sizes on the bucket tooth body 180. When the bucket tooth body 180 is deformed, the second detection block 152 can directly detect the impact of the bucket tooth body 180, without the need to detect the bucket tooth body 180 through the first detection block 150, thereby reducing the wear of the first detection block 150.

[0043] In this embodiment: the cooperation of the first detection block 150 and the second detection block 152 is used to simulate the impact of stones of different hardness on the bucket tooth body 180. The first detection block 150 is integrally installed on the side of the extrusion block 114. Therefore, during the impact on the bucket tooth body 180, the first detection block 150 is relatively more stable, and the force of the extrusion block 114 can be directly transmitted to the side of the bucket tooth body 180. In addition, by setting the first detection block 150 to teeth with different diameters, the force-bearing areas of the impact on the bucket tooth body 180 are different, so that the damage to the bucket tooth body 180 is also different, and the impact of stones of different sizes on the bucket tooth body 180 is further simulated;

[0044] Through the cooperation of the movable groove 151, the pushing spring 153 and the second detection block 152, in the process of resisting the bucket tooth body 180, the second detection block 152 uses the thrust of the pushing spring 153 to strengthen the extrusion of the bucket tooth body 180. When the bucket tooth body 180 is in an undeformed state, the second detection block 152 returns to the inside of the movable groove 151 and is flush with the end of the first detection block 150 to apply force to the bucket tooth body 180, thereby simulating the impact of stones of different sizes on the bucket tooth body 180. When the bucket tooth body 180 is deformed, the second detection block 152 can directly detect the impact of the bucket tooth body 180, without the need to detect the bucket tooth body 180 through the first detection block 150, thereby reducing the wear of the first detection block 150.

[0045] Embodiment 3: This embodiment is intended to solve the problem that the shape of the bucket tooth body is relatively complex. Most of the other sides of the bucket tooth body are inclined surfaces. Therefore, during the detection process, there may be a problem that the extrusion block cannot fit with the side of the bucket tooth body, thus making the detection incomplete. This embodiment is an improvement made on the basis of embodiment 2. For details, please refer to Figure 1-Figure 7 , wherein semicircular blocks 160 are installed at the ends of the two sets of sliding rods 131 , and a first rotating block 161 and a second rotating block 162 are symmetrically installed on the surface of the semicircular block 160 .

[0046] The first rotating block 161 and the second rotating block 162 are rotatably mounted on the surface of the semicircular block 160 . The first resisting block 163 and the second resisting block 164 are rotatably mounted on the surface of the first rotating block 161 . The first rotating block 161 and the second rotating block 162 have the same specifications.

[0047] During specific implementation, the rotating motor 142 drives the rotating screw 141 to rotate during operation, and at the same time, the first threaded segment 144 and the second threaded segment 145 are threadedly matched with the two support seats 140, so that the second circular plate 123 and the first circular plate 122 rotate oppositely inside the extrusion ring 113, so that the sliding column 133 of the sliding rod 131 slides from one end of the inclined groove 132 to the other end, and at the same time, the sliding rod 131 descends from the inside of the support platform 130. During the descent of the sliding rod 131, the semicircular block 160 at the end is used to squeeze the bucket tooth body 180. During the squeezing of the semicircular block 160, the first rotating block 161 and the second rotating block 162 on the surface thereof are rotated to adaptively resist the bucket tooth body 180. Not only that, the first resistance block 163 and the second resistance block 164 are rotated on the surface of the first rotating block 161 to adaptively resist the small inclined surface, so that the semicircular block 160 can fit on the inclined surface of the bucket tooth body 180 and apply pressure.

[0048] The surface of the detection platform 112 is installed with a pointed block 170 and a rectangular block 171, and the diameter of the rectangular block 171 is larger than that of the pointed block 170. In specific implementation, by setting the pointed block 170 and the rectangular block 171, the bottom side of the bucket tooth body 180 can be subjected to resistance from different force areas. By setting the pointed block 170 and the rectangular block 171, the hardness of the bucket tooth body 180 can be measured more accurately. The pointed block 170 is suitable for detecting areas with higher hardness, while the rectangular block 171 can detect the hardness of areas with lower hardness or different areas, thereby providing more detailed hardness distribution data. In addition, the bucket tooth body 180 will encounter various different force conditions in actual work. The setting of the pointed block and the rectangular block can simulate these different force conditions, so that the detection result is closer to the actual working environment, and helps predict the performance and durability of the bucket tooth in actual use.

[0049] This solution also proposes a method for testing the strength of an excavator bucket tooth, which includes the following steps:

[0050] S1. The tooth body 180 is mounted on the bottom side of the active end of the push cylinder 111 by bolts;

[0051] S2. During the operation of the cylinder 111, the bucket tooth body 180 is driven to descend and contact with the tip block 170 and the rectangular block 171. During the descent of the bucket tooth body 180, the downward pressure is continuously increased, so that the tip block 170 and the rectangular block 171 contact the bottom side of the bucket tooth body 180 with different force areas;

[0052] S3. The impact of the bucket tooth body 180 is simulated by different force-bearing surfaces. The bucket tooth body 180 encounters damage caused by stones of different sizes during the excavation process.

[0053] In this embodiment: during the operation of the rotating motor 142, the cooperation between the rotating screw 141, the second circular plate 123 and the first circular plate 122 is used to make the sliding column 133 of the sliding rod 131 slide from one end of the inclined groove 132 to the other end during the rotation of the first circular plate 122. At the same time, the sliding rod 131 descends from the inside of the support platform 130. During the descent of the sliding rod 131, the bucket tooth body 180 is squeezed by the semicircular block 160 at the end. During the squeezing of the semicircular block 160, the bucket tooth body 180 is adaptively resisted by rotating the first rotating block 161 and the second rotating block 162 on its surface. Moreover, the first resisting block 163 and the second resisting block 164 are rotated on the surface of the first rotating block 161 to adaptively resist the tiny inclined surface, so that the semicircular block 160 can fit on the inclined surface of the bucket tooth body 180, so that uniform pressure is applied to the inclined surface of the bucket tooth body 180, which helps to simulate the real working environment and evaluate the performance of the bucket tooth at different angles.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A device for testing the strength of an excavator bucket tooth, comprising an operating platform (110), characterized in that: The operating platform (110) is provided with a pushing cylinder (111) for pushing the bucket tooth body (180) to move. The bucket tooth body (180) is installed on the movable end of the pushing cylinder (111) by means of bolts. The operating platform (110) is provided with a detection platform (112). During the movement of the bucket tooth body (180), the bucket tooth body (180) contacts the detection platform (112). An extrusion ring (113) is provided on the outside of the bucket tooth body (180). The extrusion ring (113) is clearance-matched with the bucket tooth body (180). An extrusion block (114) for applying force to the bucket tooth body (180) is installed inside the extrusion ring (113).

2. The excavator bucket tooth strength testing device according to claim 1, characterized in that: A connecting block (120) is installed at the end of the movable end of the pushing cylinder (111), a supporting column (121) is symmetrically installed between the extrusion ring (113) and the connecting block (120), and a first circular plate (122) and a second circular plate (123) are rotatably installed inside the extrusion ring (113).

3. The excavator bucket tooth strength testing device according to claim 2, characterized in that: A support platform (130) is installed inside the extrusion ring (113), the first circular plate (122) is installed adjacent to one side of the support platform (130), and the second circular plate (123) is installed adjacent to the other side of the support platform (130). A sliding rod (131) is slidably installed inside the support platform (130), and the extrusion block (114) is installed on the bottom side of the sliding rod (131).

4. The excavator bucket tooth strength testing device according to claim 3, characterized in that: A plurality of inclined grooves (132) are provided on the surface of the first circular plate (122); a sliding column (133) is installed on the side of the sliding rod (131); the sliding column (133) is slidably matched with the inclined groove (132); a first protrusion (134) is installed on the side of the first circular plate (122); a second protrusion (135) is installed on the side of the second circular plate (123); support seats (140) are installed on the surfaces of the first protrusion (134) and the second protrusion (135) respectively; a rotating screw rod (141) is installed between the two supporting seats (140); a rotating motor (142) is installed at the end of the rotating screw rod (141); a connecting plate (143) is installed on the side of the extrusion ring (113); the rotating motor (142) is installed at the end of the connecting plate (143).

5. The excavator bucket tooth strength testing device according to claim 4, characterized in that: The surface of the rotating screw rod (141) is provided with a first thread segment (144) and a second thread segment (145), the first thread segment (144) and the second thread segment (145) have opposite threads, and the first thread segment (144) and the second thread segment (145) are respectively threadedly matched with the two support seats (140).

6. The excavator bucket tooth strength testing device according to claim 1, characterized in that: A plurality of first detection blocks (150) are integrally installed on the side of the extrusion block (114); the first detection blocks (150) are linearly arranged on the side of the extrusion block (114); a movable groove (151) is provided on the side of the extrusion block (114); a second detection block (152) is movably installed inside the movable groove (151); a pushing spring (153) is installed between the second detection block (152) and the movable groove (151); sliding grooves (154) are symmetrically provided on both sides of the movable groove (151); sliding blocks (155) are symmetrically installed on the side of the second detection block (152); the sliding blocks (155) are slidably matched with the sliding grooves (154).

7. The excavator bucket tooth strength testing device according to claim 3, characterized in that: The ends of the two groups of sliding rods (131) are installed with semicircular blocks (160), and the surfaces of the semicircular blocks (160) are symmetrically installed with a first rotating block (161) and a second rotating block (162).

8. The excavator bucket tooth strength testing device according to claim 7, characterized in that: The first rotating block (161) and the second rotating block (162) are rotatably mounted on the surface of the semicircular block (160); a first resisting block (163) and a second resisting block (164) are rotatably mounted on the surface of the first rotating block (161); the first rotating block (161) and the second rotating block (162) have the same specifications.

9. The excavator bucket tooth strength testing device according to claim 1, characterized in that: A pointed block (170) and a rectangular block (171) are installed on the surface of the detection platform (112), and the diameter of the rectangular block (171) is larger than that of the pointed block (170).

10. A method for testing the strength of an excavator bucket tooth, according to a device for testing the strength of an excavator bucket tooth according to claims 1-9, characterized in that: The steps include: S1. The tooth body (180) is mounted on the bottom side of the active end of the push cylinder (111) by bolts; S2. During the operation of the pushing cylinder (111), the bucket tooth body (180) is driven to descend and come into contact with the pointed block (170) and the rectangular block (171). During the descent of the bucket tooth body (180), the downward pressure is continuously increased, so that the pointed block (170) and the rectangular block (171) come into contact with the bottom side of the bucket tooth body (180) with different force bearing areas; S3. The impact of the bucket tooth body (180) is simulated by different force-bearing surfaces, and the bucket tooth body (180) encounters damage caused by stones of different sizes during the excavation process.

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